Abstract: A device for recognizing an arcing fault in incident light that includes a sensor for detecting absorption lines of the incident light, and an evaluation unit which generates an evaluation signal when characteristic absorption lines are detected.

Abstract: A restoring element is for an electrical switch. In an embodiment, the restoring element is constructed in two parts from a first part and a second part. The two parts are configured to converge in a first direction for tripping the electrical switch and the two parts do not necessarily converge in a second direction for resetting the electrical switch, the second direction being different from the first direction. Further, the second part of the restoring element includes a restoring cam which is configured to interact with a handle of a switching mechanism of the electrical switch, such that, during resetting of the electrical switch, the restoring element is configured to be rotated by the handle in the second direction for resetting the electrical switch.

Abstract: A pressure trip unit for an electrical switch, including an actuating element and at least one flow channel per electrical pole, is disclosed. In an embodiment, the at least one pole of the electrical switch includes at least two switching contacts for making or disconnecting a flow path. The switching contacts of the at least one pole of the electrical switch are disconnectable via the actuating element which can respond to a pressure generated in a disconnection zone of the, in each case, two switching contacts by an electric arc drawn in the event of an electrodynamic recoil of the switching contacts. Further, the disconnection zone is connectable to the actuating element via the flow channel, the at least one flow channel including a nonreturn valve to permit a flow only from the disconnection zone in the direction of the actuating element.

Abstract: A trigger element includes an actuating member of a pressure trigger for an electric switch. The pressure trigger is provided with at least one flow channel per electric pole. The at least one pole of the electric switch includes at least two switch contacts for making or breaking a current path. The switch contacts of the at least one pole of the electric switch is disconnectable via the actuating member, which can respond to a pressure that is generated by an electric arc drawn during electrodynamic recoil of the switch contacts in a separation zone of the two switch contacts. The separation zone is connectable to the actuating member via the flow channel such that the actuating member is guided from a housing of the trigger element between a neutral position and a trigger position. After the trigger position has been reached, a relief of pressure vents the pressure trigger.

Abstract: A pressure trip unit for an electrical switch, including an actuating element and at least one flow channel per electrical pole, is disclosed. In an embodiment, the at least one pole of the electrical switch includes at least two switching contacts for making or disconnecting a flow path. The switching contacts of the at least one pole of the electrical switch are disconnectable via the actuating element which can respond to a pressure generated in a disconnection zone of the, in each case, two switching contacts by an electric arc drawn in the event of an electrodynamic recoil of the switching contacts. Further, the disconnection zone is connectable to the actuating element via the flow channel, the at least one flow channel including a nonreturn valve to permit a flow only from the disconnection zone in the direction of the actuating element.

Abstract: A connector is disclosed for connecting a first shaped element to a second shaped element. The first shaped element and the second shaped element each include a dovetail guide. In an embodiment, the connector is provided with contact areas. The contact areas are designed to engage into the respective dovetail guides to connect the first and second shaped elements.

Abstract: A rotor shaft module for a rotor shaft of a molded-case circuit breaker, includes a module body including an electrically insulating first material, the module body including a receptacle for a contact element of the molded-case circuit breaker. The rotor shaft module includes at least one coupling apparatus for connection to an opposing coupling apparatus of a further rotor shaft module. In addition, disclosed are a rotor shaft for a molded-case circuit breaker includes at least two coupled rotor shaft modules; a molded-case circuit breaker including a rotor shaft; and a method for producing a rotor shaft module for a rotor shaft of a molded-case circuit breaker.

Abstract: A rotor is disclosed for an electric switch. In an embodiment, the rotor includes a rotor housing and a rotatably mounted contact link, which has two movable contacts. In an embodiment, by rotation of the rotor, the two movable contacts are configured to interact with two stationary contacts of an electric switch so as to close or open a circuit. Further, the rotatably mounted contact link is mounted movably in the rotor housing in a direction perpendicular to the direction of the contact link in its closing position.

Abstract: A rotor for an electric switch is disclosed. In an embodiment, the rotor includes a rotor housing and a rotatably mounted contact bridge, which exhibits two movable contacts, wherein, by the rotation of the rotor, the two movable contacts can interact with two fixed contacts of an electric switch for closing or opening a circuit. The rotatably mounted contact bridge in the rotor housing is movably mounted in a direction perpendicular to the direction of the contact bridge in its closed position.

Abstract: A switch apparatus includes at least two contact levers, arranged rotatably about a common rotation axis and arranged, at least sectionally, parallel to one another and spaced apart. The contact levers each have two contact lever arms including contact sections for respectively making contact with one fixed mating contact section of a power line element. The two first contact lever arms make contact with a first force transfer element, and the two second contact lever arms make contact with a second force transfer element for applying a spring force. At least one force transfer element has, in touching sections for touching the contact lever arms, a bulge which extends radially outwards, for the uniform transfer of the spring force to the contact lever arms. At least one holding element of the two holding elements may be configured to be movable relative to the power line elements via an articulated bearing.

Abstract: A rotor is shown for an electromechanical switching device, includes: a rotor housing; two contact bridges having in each case two contact portions; an intermediate element disposed between the two contact bridges and mounted so as to be rotatable about a rotation axis; and first spring pins and second spring pins; first spring elements and second spring elements. In an embodiment, the spring pins, the spring elements, and the intermediate element are operationally connected, and at least one of the first and second spring pins is disposed on the intermediate element and/or on the contact bridges such that the spring pin by rotating the rotor is tiltable between the two states in relation to the rotation axis. An embodiment furthermore relates to an electromechanical switching device including the rotor.

Abstract: A switching device, in particular an electrical power circuit breaker, is disclosed for protecting an electrical circuit. The switching device includes two pole terminals, a switching mechanism for automatically interrupting the electrical connection of the two pole terminals in the event of an overload, electrical components for controlling the switching device and a pole cassette in which the switching mechanism is disposed in a switching chamber. The pole cassette includes at least one gas duct which is connected to the switching chamber in a gas-communicating manner and is designed to discharge gas from the pole cassette past the electrical components to the environment.

Abstract: A switch apparatus includes at least two contact levers, arranged rotatably about a common rotation axis and arranged, at least sectionally, parallel to one another and spaced apart. The contact levers each have two contact lever arms including contact sections for respectively making contact with one fixed mating contact section of a power line element. The two first contact lever arms make contact with a first force transfer element, and the two second contact lever arms make contact with a second force transfer element for applying a spring force. At least one force transfer element has, in touching sections for touching the contact lever arms, a bulge which extends radially outwards, for the uniform transfer of the spring force to the contact lever arms. At least one holding element of the two holding elements may be configured to be movable relative to the power line elements via an articulated bearing.

Abstract: A rotor shaft module for a rotor shaft of a molded-case circuit breaker, includes a module body including an electrically insulating first material, the module body including a receptacle for a contact element of the molded-case circuit breaker. The rotor shaft module includes at least one coupling apparatus for connection to an opposing coupling apparatus of a further rotor shaft module. In addition, disclosed are a rotor shaft for a molded-case circuit breaker includes at least two coupled rotor shaft modules; a molded-case circuit breaker including a rotor shaft; and a method for producing a rotor shaft module for a rotor shaft of a molded-case circuit breaker.

Abstract: A switching device include at least two switching poles. Each of the switching poles has one current path and one switching contact system for opening and closing the current path, wherein a movable contact arrangement of the switching contact system of the switching poles has an integral switching shaft segment, formed from insulating material, which bears a contact lever arrangement and in which the switching shaft segments of adjacent switching poles are connected by way of at least two connecting branches; so as to form the switching shaft. The connecting branches extending at a distance parallel to the axis of rotation and are formed from corresponding connecting elements. In at least one embodiment, all of the connection elements of the at least two connecting branches are formed by first sections of the integral switching shaft segments, which bear the contact lever arrangements.

Abstract: An embodiment of the invention relates to a switch pole of a circuit breaker having two pole shells between which are disposed, in the assembled state, at least one switching contact, current-carrying elements and an arc quenching device having an arc runner plate and at least one splitter plate delimiting an arc chute, wherein at least one slot for accommodating the splitter and/or arc runner plate is provided between the pole shells. In at least one embodiment, there is provided inside between the pole shells a functional component having a least one slot spaced apart from the pole shells which is used to accommodate the at least one splitter and/or arc runner plate.

Abstract: An electrical switch including at least one switching unit includes: a contact lever and two parallel plates, between which the contact lever is resiliently retained by way of pins. The contact lever is inserted into an electrically non-conductive housing of the switching unit, wherein at least one of the pins forms a retaining pin, wherein the length of the retaining pin exceeds the distance between the parallel plates and wherein the retaining pin extends through a hole in each of the two plates and is retained by one pin end in a retaining recess in the housing and by the other pin end in an opposite retaining recess in the housing.

Abstract: A connector is disclosed for connecting a first shaped element to a second shaped element. The first shaped element and the second shaped element each include a dovetail guide. In an embodiment, the connector is provided with contact areas. The contact areas are designed to engage into the respective dovetail guides to connect the first and second shaped elements.

Abstract: A rotor is disclosed for an electric switch. In an embodiment, the rotor includes a rotor housing and a rotatably mounted contact link, which has two movable contacts. In an embodiment, by rotation of the rotor, the two movable contacts are configured to interact with two stationary contacts of an electric switch so as to close or open a circuit. Further, the rotatably mounted contact link is mounted movably in the rotor housing in a direction perpendicular to the direction of the contact link in its closing position.

Abstract: A device is disclosed including a removable cover of a housing of an electrical switch and a handle. In at least one embodiment, the handle, by way of its position, switches the electrical switch between different states. Further, the handle is connected to the housing and the handle includes a contour which is embodied, at least in one position of the handle, to interact with the cover for locking the removable cover.